Phase-splitter.



PATENTBD MAY 22, 1906. H. H. CUTLER.

, PHASE SPLITTER. APPLICATION FILED .TAN.7,1905.

I 2 SHEETS-SHEET 1.

nun:

PATENTED MAY 22, 1906.

H. H. CUTLER.

PHASE SPLITTER.

APPLICATION FILED JAN. 7, 1905.

2SHEETS-SHEET 2.-

UNITED s'r.

AENT r'rron.

HENRY H. CUTLER, OF MILWAUKEE, WISCONSIN.

PHASE-'SPMTTER.

of this specification.

My invention relates to phase-splitters, more particularly designed for starting single-phase motors under no load, my object being to provide a simple and efficient device whereby the motor maybe readily started.

My invention also contempiates the provision of a phase-splitter in W ch arplurality.

of switches are provided for cutting out the resistance of the phase-splitter, which are arranged to be closed one at a time in a definite order and which may be automatically opened. i Y I have illustrated my invention in the accompanyingdrawings, in .which Figure 1 is a view of the switch ofvzi'yinvention. Fig. 2 is a side view thereof, all the arms being removed except the first'one.

Fig. 3 is a detail view of the retaining-mag.

net. Fig. 4 is a detailview of the mechaih 1sm for holding the levers in the closed osition. Fig. 5 is a diagrammatic view 0' the.

circuit arrangement of my invention. Fig. 6 is a sectional view of one of the switcharms, taken on the line 6 6 of Fi .4; and Fig. 7 is a detail view of one of the'loci 'ng-dogs.

' In constructing my invention switch-levers 1, 2, and 3 aresuitably pivoted or journaledto oneend' and are provided at their 0 'posite ends with handles.

shaft or rod 4, mounted in arms upon brack ets 6. The brackets 6 also support a rod 7, which is threaded through a rubber" tube-8,

which serves as-a cushion or bufferagainst "the usualform from aflnumber of strips of cpipper laid face to face, the. free ends eing a apted to engage the contact-surfaces to complete the circuit 'therethrough. I The levers 2 and 3' are provided with two arms 10 11 and 1213', respectively, and thereby form two doub'le pole switches. Each armoffithe Specification of Letters Patent. Application 516a January 7,1906. Serial in. 240,127.

I have. shown t 1e several switch-leversas journaled upon a Patented May 22,1966.

two levers carries acontact device of the same construction as the contact-bar 9.

Upon the base-board 14 is mounted a contact-bar 15, with which one end of the contact device 9 of each lever is adapted to engage, the other end of said device being adapted to engage one ofthe contact-terminals 16, 17, 18, 19, and 20. -Upon the terminal 16is provided a binding-post 21, by which the same may be connected with-one side of the supply-circuit. .Upon the terminal 20 is pro vided, a binding-post- 22, whereby the same may be connected with one side of the fieldcoils, and a second bindingrpost 23 is provided,which is adapted to be connected with the other side of the field-coils.

U .on the terminal 16-is mounted a carbon b ock 24, and a similar carbon block 25 is mounted upon the end of the contact-bar 15. The first switch-arm 1 carries laterally-extending arms 26 and 27, supporting upon the ends the carbon blocks 28 and 29, respectively. When the switch-arm 1 is moved to close the circuit, the block 29 engages block 25 and block 28 en ages block 24, thereby closing the cir-- cuit om the terminal 16 to terminal 15. The further movement of the switch-arm causes the contact device 9 to directly close together terminals 15 and 16. Likewise whenthe switch-arm 1 is moved'outward the contact device 9 leaves terminals 15 and 16 before the carbon blocks separate, so that any are which may be formed by the opening of the circuit will take place'between t e car.' bon blocks instead of the metallic-surfaces. Near the upper end of the switch arm a lug 30- is provided which carries "a laterally ex tending rod 31, which may take the form of a screw. r

Mounted upon the base-board 1 1 above the arm 1 is a retaining-magnet 32,'having an armature 33, pivoted at 34. The armature 33 carries a laterally and upwardly extending lug 35, and when the arm 1 is moved to close the circuit the rod 31 engages the side of thearmature to move the same a ainst the magnet-pole and the magnetism 0% the magnet 32 retains the armature in this position. The

swinging end of the armature carries the lug 35 upon the exterior of the rod 31, so that said rod will rest in the slot f ormed between the lug 35 and the face of the armature. So long as the magnet 32 remains energizedthe arm 1 will thus beheld ina closed 'osition. When,

however, the magnet is energized, the

weight of the arm will carry the same to the position shown in Fig. 2, thereby rocking the armature upon its pivot, as shown.

Mounted upon a rod or shaft 37, supported in suitable bearings upon the base-plate 14, are locking-dogs 38 and 39. Each dog has a rear end so shaped as to en age the base-plate 14 and limit the downwar movement of the dog when free. Upon the end of the dog to the right an upwardly-extending lip 40 is provided, which has its front edge curved and its rear edge perpendicular to the u per surface of the dog. The under side 0 the dog has a lip 41,,extending throughout its entire length, which lip is rounded off at its lefthand edge. The levers 2 and 3v are each provided with a latch 42, pivoted to the arm at 43 and set in a slot 44. The wallof the slot limits the vertical movement of the latch relatively to the arm. Below the latch and formed integrally with the arm is a lug 45, projecting toward the base-plate, and consists of two parts 46 and 47, the part 46 bein square in section and flat upon the end, an when the lever is in a position to close the circuit presents a vertical surface. The up er part of the part 47 is inclined or chamfered at an acute angle.

In Fig. 5 I have shown a diagrammatic view of the circuit arrangement of my device, and it will be noted that one side 48 of the supply-main branches so as to include two sets of coils in parallel. I have shown four field-coils 49, 50, 51, and 52; but it will be understood that I have only selected this.

number for the purpose of illustration. One side 48 of the supply main is connected through the coils 49 and 50 and by conductor 53 with binding-post 22 on the contact 20. The contact 20 is connected with one end of the non-inductive resistance 54, the opposite end thereof being connected by conductor 61 with the contact 15. At an intermediate point the non-inductive resistance is connecte tor 58 with binding-post 23.

nected by conductor 56 with the contact 18. A branch 57 of the main 48 is connected through the field-coils 51, aiid 52 by conduc- The bindingpost 23 is connected by conductor 59 with contact 19, said contact being also connected with one end of the inductive resistance 60. The 0 posite end of the resistance 60 is conby conductor 61with contact 15 and at an intermediate point is connected by conductor 62 with. the contact 17 The contact 21 is connected by Wire 63 with the opposite side 63 of the supply-main. The retainingmagnet 32 is supplied with a direct current from any suitab e source, and in the present instance is illustrated as receiving a direct current from the alternating-current mains 48 and 63 through the interposition of a rectifier 64. This rectifier may be of any desirable construction and is illustrated as a "cctifier of the aluminium-iron type, in which moved against the pole of the retaining-mag-.

net 32, and the retaining-magnet thus serves to maintain the switch-arm 1 in a closed po. sition.

7 Current may now be traced from supply-main 63, contact 16, across the switcharm 1, contact 15 to conductor 61, where it will divide, part thereof passing through the non-inductive resistance 54 to contact 20, by conductor 53, through the field-coils 49, and thence to the opposite main 48, the other part of the current passing through the inductive resistance to the bindingost 23, by conductor 58, through the field-coi s 52 51, and thence by conductor 57 to the opposite main 48. A direct current will at the same time pass through the retaining-magnet 32, energizing the. same. The second switcharm 2 is now closed, and as the dog 38 is in its raised position the latch 42 of the arm will ride over the lip 40 of the dog 38 and will engage the vertical wall thereof, and the switch-arm will thus be held in the closed position. With this arm closed circuit may be traced from the conductor 63, contact 16, across switch-arm 1, by pole 11, conductor 56, through one-half of the resistance 54 to contact 20, thence by conductor 53, through the field-coils 50 and 49 back to the opposite side 48 of the main. A branch circuit may also be traced from contact 15,.through pole 10, conductor 62, through one-half of the resistance 60 to binding-post 23, and thence by conductor 58 through field-coils 52 and 51 and branch 57 back to the opposite side 48 of the main. In this manner a portion of the resistances 54 and 60 is cut out. The wall 47 of the arm 2 will engage and lift the second rocking dog 39, so that when arm 3 is closed the latch 42 thereof will be engaged and held by the lip 40 of the dog 39. When the arm 3 is closed, the circuit may be traced from conclose together the termiductor 15 through the pole 13 of the switchmoving outward the first rocking dog 38 is permitted to fall and the latch of the second switch-arm 2 is thus released and said switcharm likewise flies out. The switch-arm 2 permits the second rocking dog to fall, there- )y releasing the switch-arm 3, whereby all the switch-arms are released and the circuit to the motor is opened. 5

Having described my invention, what I claim as new, and desire tosecure by Letters 1. In a phase-splitter in combination, a plurality'of r esistances of diflerent character, and a plurality of independently-actuated switches for controlling said resistances, each of said switchesbeing adapted to control all of said. resistances.

2. In a phase-splitter, in combination, a plurality of resistances of different character, a plurality of independently actuated switches controlling said resistances, and means for preventing the closure; of Said switches except in a definite order.

3. In a hase splitter, in combination, 'a plurality of resistances of different character, a plurality of independently actuated switches for controlling said'resistances, and a retaining-magnet for holding said switches in a closed position,

4.. In a phase-splitter, in combinationia plurality of resistances of different character, a -plurality of independently actu'ated switches for controlling the said resistances, and an electromagnetic retaining mechanism, for holding said switches in a closed position. 5. In abase-splitter, incombination, a plurality o resistances of difierent character, and a plurality of independently-actuated switches for controlling said resistances, an electromagnetie retaining mechanism for holding said switches in a closed position, and means for supplying the same with a direct current.

6. In a phase-splitter, in combination, a

plurality of resistances of different character,

a lurality" of independently actuated swi ches for controlling the same, means for preventing the closure of said switches except in a definite order, and a retaining mechan-- ism for holding said switches in a closed position.

7. In a' hase-splitter, in combination, a plurality o resistances of difierent character, a plurality .of independently actuated switches arranged in series for controlling resistances, an interlocking mechanism, whereby each switch controls the next sucnon inductive an ceeding switch, and retaining means for the first switch of, the series. i r

i 8. In a phase-splitter, in combination, a plurality, of resistances of different character arranged in parallel paths, and a' plurality of independently-actuated switches for controlling said resistances, each SW'ltCh belng adapted to control all of said resistances.

9. In a hase-splitter, in combination, a

plurality of resistances of different character arranged in parallel paths, a plurality of Independently-actuated switches for controll ng said resistances, and means for preventing the closure of said'switches, except in a definite order.

with, a plurality of resistances, of different character, arranged in parallel aths, a plurality of-independently-actuate switches for controllin said resistances, a retaining mechanis'm for holding said switches in a closed position, and means for automatically actuating said mechanism to release said switches.

' 11. In a phasesplitter, in combination, a plurality of resistances of difierent character arranged in parallel paths, a plurality of in- .80 10. In a phase-splitter, the combination dependently-actuated switches for controlling said resistances/means ,for preventing the closure of said switches except in a definite order, and a retaining mechanism for holding said switches in a closed position.

12. In a phase-splitter, in combination, a non-inductive and aninductive resistance arranged in arallejl paths, and a plurality of independent y-actuated switches for controlling said resistances, each switch being adapted to control both of said resistances? 13. In a-phase-s litter, in combination, a

an inductive resistance arranged in parallel paths, a plurality of independentlyactuated switches for controlling said resistances,.and means for preventing the clbsure of said switches except in a definite order.

14. In a phaselitter, in combination, a non-inductive an an inductive reslstance arranged in parallel paths, a plurality of independently-actuated switches for controlling said resistances, means for preventing the closure of said switches except in a definite order, and a retaining mechanism for holding said switches in a closed position.

15. In a phase-splitter, in combination, a plurality of resistances of different character, and a plurality of independently-actuated switches for simultaneously controlling said resistances, each .switch adapted to control both of said resistances.

16. In a phase-splitter, in combination, a plurality of resistances of different character, a plurality switches for simultaneously controlling said resistances, and means for preventin the cloilure of said switches except in a de ite orof independently actuated 17. In a phase-splitter, in combination, a In Witness whereof I have hereunto subplurality of resistances of different character, scribed my name in the presence of two wit- 10 a, plurality of independently actuated nesses. switches for simultaneously controllin said 5 resistances, means for preventing the c osure' IEN R1 CUTLER of said switches except in a definite order, Witnesses: and a retaining mechanism for holding said W. PERRY HAHN,

switches in a closed position. I ELIZABETH R. KING. 

